Question

How do you insert parentheses, operation signs, and exponents to make 3 -2 7 = 4 true?

Answer 1

`3^2--2-7=4`

Or if you were allowed to rearrange the equation and use factorials,

`7-(3!)/2=4`

Explanation:

Answer 1 :

`3^2--2-7=4`

`9+2-7=4`

`11-7=4`

Answer 2 :

`3! =3*2*1=6`

`6/2=3`

`7-3=4`